stus = ['孙悟空', '猪八戒', '沙和尚', '唐僧']
# print(stus[0])
# print(stus[1])
# print(stus[2])
# print(stus[3])

# i = 0
# while i < len(stus) :
#     print (stus[i])
#     i += 1
#
